Takamasa Shimizu

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming zinc phosphate film on metal surface
- Patent number 5,221,370
- Issue date Jun 22, 1993
- Nippon Paint Co., Ltd.
- Masahiro Jo
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for phosphating metal surfaces
- Patent number 5,039,363
- Issue date Aug 13, 1991
- Nippon Paint Co., Ltd.
- Masahiro Jo
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...